. Veterinary studies for agricultural students. Veterinary medicine. FIG. 33. MANGE MITE. The cause of one form of horse mange. Psoroptes com munis equL. FIG. 34. CATTLE LOUSE. FEMALE. Hacmaiititiniix eurystemus. Causes.—Three types of mites, or acari, affect man and the lower animals, all very small: (a) sarcoptes, (b) psoroptes, (c) symbiotes. Sarcoptes burrow channels and live in or beneath the cuticle. The eggs are laid and young hatched in these channels. These mites may live 14 days in ordinary stables on harness, blankets, or woodwork. Psoroptes live on skin surface. They can move aroun
. Veterinary studies for agricultural students. Veterinary medicine. FIG. 33. MANGE MITE. The cause of one form of horse mange. Psoroptes com munis equL. FIG. 34. CATTLE LOUSE. FEMALE. Hacmaiititiniix eurystemus. Causes.—Three types of mites, or acari, affect man and the lower animals, all very small: (a) sarcoptes, (b) psoroptes, (c) symbiotes. Sarcoptes burrow channels and live in or beneath the cuticle. The eggs are laid and young hatched in these channels. These mites may live 14 days in ordinary stables on harness, blankets, or woodwork. Psoroptes live on skin surface. They can move around on the surface and spread rapidly. Symbiotes affect regions near the feet and move about very little. Diagnosis is made on the condition of the skin, which be- comes dry and wrinkled or leathery with hairs partly gone ; in- Digitized by Microsoft®. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Reynolds, Myron Herbert, 1865-. St. Paul, St. Anthony Park, Minn. , The author
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectveterin, bookyear1903
